make -C lib all
make[1]: Entering directory `/home/greg/emacs-25.1/lib'
  GEN      byteswap.h
  GEN      dirent.h
  GEN      execinfo.h
  GEN      fcntl.h
  GEN      getopt.h
  GEN      inttypes.h
  GEN      signal.h
  GEN      stdalign.h
  GEN      stddef.h
  GEN      stdint.h
  GEN      stdio.h
  GEN      stdlib.h
  GEN      string.h
  GEN      sys/select.h
  GEN      sys/stat.h
  GEN      sys/time.h
  GEN      sys/types.h
  GEN      time.h
  GEN      unistd.h
make  all-am
make[2]: Entering directory `/home/greg/emacs-25.1/lib'
make[2]: Nothing to be done for `all-am'.
make[2]: Leaving directory `/home/greg/emacs-25.1/lib'
make[1]: Leaving directory `/home/greg/emacs-25.1/lib'
make -C lib-src all
make[1]: Entering directory `/home/greg/emacs-25.1/lib-src'
make -C ../lib all
make[2]: Entering directory `/home/greg/emacs-25.1/lib'
make  all-am
make[3]: Entering directory `/home/greg/emacs-25.1/lib'
make[3]: Nothing to be done for `all-am'.
make[3]: Leaving directory `/home/greg/emacs-25.1/lib'
make[2]: Leaving directory `/home/greg/emacs-25.1/lib'
make[1]: Leaving directory `/home/greg/emacs-25.1/lib-src'
make -C src VCSWITNESS='' all
make[1]: Entering directory `/home/greg/emacs-25.1/src'
make -C ../lib all
make[2]: Entering directory `/home/greg/emacs-25.1/lib'
make  all-am
make[3]: Entering directory `/home/greg/emacs-25.1/lib'
make[3]: Nothing to be done for `all-am'.
make[3]: Leaving directory `/home/greg/emacs-25.1/lib'
make[2]: Leaving directory `/home/greg/emacs-25.1/lib'
  CC       dispnew.o
"globals.h", line 926: syntax error before or at: 8
"globals.h", line 926: warning: old-style declaration or incorrect type for: lispsym
"lisp.h", line 1109: warning: argument #1 is incompatible with prototype:
        prototype: pointer to struct Lisp_Symbol {_Bool gcmarkbit :1, enum symbol_redirect {SYMBOL_FORWARDED(3), SYMBOL_LOCALIZED(2), SYMBOL_VARALIAS(1), SYMBOL_PLAINVAL(4)} redirect :3, unsigned int constant :2, unsigned int interned :2, _Bool declared_special :1, _Bool pinned :1, int name, union  {..} val, int function, int plist, pointer to struct Lisp_Symbol {..} next} : "lisp.h", line 1099
        argument : pointer to int
"dispnew.c", line 3016: syntax error before or at: 8
"dispnew.c", line 3016: identifier redefined: alignas
        current : function() returning struct Lisp_Subr {struct vectorlike_header {..} header, union  {..} function, short min_args, short max_args, pointer to const char symbol_name, pointer to const char intspec, pointer to const char doc}
        previous: function() returning struct Lisp_Symbol {_Bool gcmarkbit :1, enum symbol_redirect {SYMBOL_FORWARDED(3), SYMBOL_LOCALIZED(2), SYMBOL_VARALIAS(1), SYMBOL_PLAINVAL(4)} redirect :3, unsigned int constant :2, unsigned int interned :2, _Bool declared_special :1, _Bool pinned :1, int name, union  {..} val, int function, int plist, pointer to struct Lisp_Symbol {..} next} : "globals.h", line 926
"dispnew.c", line 3016: warning: old-style declaration or incorrect type for: Sredraw_frame
"dispnew.c", line 3016: too many initializers for scalar
"dispnew.c", line 3016: structure/union designator used on non-struct/union type
"dispnew.c", line 3022: cannot recover from previous errors
cc: acomp failed for dispnew.c
make[1]: *** [dispnew.o] Error 2
make[1]: Leaving directory `/home/greg/emacs-25.1/src'
make: *** [src] Error 2